Jacob bbengel



(No Model.) 1

J. BRENGEL.

RELIEF VALVE.

No. 351,159. I Patented 001;. 19, 1886.

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WYJWES SES 1.7V V'EJV T OR & Jacob B-rz-mgal.

fl w MM/ 713/ .A'TTOR/VE YS an outlet-channel, Z), and contains a valve, 0,

valve which is especially adapted for use in NITJED STATES JACOB BRENGEL, OF NE\V YORK, N. Y.

RELIEF- VALVE.

BPECIFICATION forming part of Letters Patent No. 351,159, dated October 19. 1886.

Application filed April 15, 1880.

T0 (oZ'Z whom it may concern;

Be it known that I, JACOB BRENGEL, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Re lief-Valves, of which the following is a specification.

My invention relates to an improved reliefregulating pressures in the shaving-cask process in beer-brewing; and it consists inthe features of construction and combination of devices hereinafter described and claimed, and illustrated in the accompanying drawings, in which- Figure 1 represents a central longitudinal section of a relief-valve constructed according to my invention. Fig. 2 is a transverse section of the same in the plane xx, Fig. 1. Fig. 8 is a central longitudinal section showing the valve on its seat. Fig. 4 is an inverted plan View of the valve detached. Fig. 5 is a 1ongitudinal section thereof in the plane 3/ y, Fig. 4. Fig. 6 is an elevation showing the valve applied, the said figure being taken on a smaller scale than the preceding figures.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the casing for thevalve, which is provided with a threaded shank, a, to which a pipe can be coupled. In the casing is formed a cylindrical valve-chamber, 13, which communicates with that neatly fits the same and can reciprocate therein. In the periphery of the metallic disk portion 0 of the valve are cut a number of notches, c, which latter lie beyond the circumference of a valvedisk, c", of rubber or other suitable compressible or elastic material, which is smaller in diameter than the disk 0, and is secured to the same by a threaded shank, (1, formed on the disk, and a nut, D, that screws upon the disk 0.

A seat, E, Fig. 3, for the valve-disk c" of the valve 0, is formed at the inner end of a plug, A, which is screwed into the casing A, and contains an inlet-channel, Z), and a threaded socket, a, into which a faucet or cock can be screwed. In the plug A is also a deep cylindrical recess, f, which incloses a spiral spring, F, one end of which abuts against the bottom Serial No. 159,003. (No model.)

of the recess, while the other encompasses the nut I) and bears against the valve, so that the latter is held normally from its seat E on the plug and against the bottom of the valve-chamber B, as shown in Fig. 1. In this position of the valve the fluid entering the inlet-channel can make its exit through the notches c, or, as I shall term them, the exit-ports; but when the pressure of fluid on the opposite side of the valve forces the same to its seat the passage of fluid is prevented. (Fig. 2.)

In Fig. 6 I have shown my reliet valve as applied for the regulation of pressure in the shaving-cask stage of the brewing process. G G, &c., represent the shaving-casks. H is the main pipe, which leads from a carbonic-acid gas flask or producer, and the pressure in this pipe is usually held at about seven pounds by well-known means. The shaving-casks have faucets g tightly inserted in their bungs, and

connect by means of branch pipes h h, 82c, with the main pipe, and in the length of the same are inserted the pressure-relief valves openingin the direction of arrow 1. IVhile the pressure of the gas in the shaving-casks due to fermentation is below the pressure in the pipe H the valve remains on its seat; but if the pressure in any one of the easks rises above that in the pipe H the valve is raised from its seat and the gas gradually makes its exit from the cask until the pressures are balanced, thereby preventing undue pressure in the casks. The object of supplying the valve with these inlet-ports is to obtain a gradual exit of the relieved gases, which is especially necessary in the brewing processes. Instead of notches c, the valve can be supplied with a circular series of perforations.

\Vhat I claim as new, and desire to secure by Letters Patent, isl. A relief-valve combining in its structure the following elements, to wit: the casing A, having the externally-threaded shank a, an illternal valve-chamber, B, and an outlet-channel, b, the plug A, detachably connected with the casing and having an inwardly-projecting valveseat, E, and an inlet-channel, b, the valve 0, located in the valve-chamber and provided with the peripheral exit-ports c, and aspring, F, acting to normally hold the valve away from the valve-seat of the plug, and thereby permit the fluid entering the inlet-channel of the plug to pass to the valve-chamber and through the outlet-channel ol' the casing, substantially as and for the purpose described.

2. A relief-valve combining in its structure the following elements, to Wit: a casing, A, having an internal valve-chamber, B, and an outlet-channel, I), the plug A, having ascrewthreaded connection with the casing and provided with an inlet-channel, b, a recess,f, and an inwardly-projecting valve-seat, E, avalve, 0, located in the valve-chamber and having the peripheral exitports c, and a spring, F, located in the recess of the plug and acting to normally hold the valve away from said valve seat, and thereby permit the fluid entering the inlet-channel of the plug to pass to the valvechamber and through the outlet-channel of the casing, substantially as described.

3. A relief valve combining in its structure the following elements, to wit: the casing A, having the externally-threaded shank a, an internal valve-chamber, B, and an outlet-channel, b, the plug A, detachably connected with disk, 0, larger in diameter than the disk 0 having a peripheral series of exit-ports located beyond the outer circumference of the said disk 0', the two disks being secured to each other, substantially as set forth;

-In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

I JACOB BRENGEL; ['L. s] Vitnesses:

W. HAUFF, E. F. KAsTENHUBER. 

